#B31F5A#B31F5A

#B31F5A is a mid, vivid pink. Relative luminance 0.113; OKLCH L 50.8% C 0.185 H 3.6°. Best body text is #FFFFFF at 6.44:1 contrast (WCAG AA passes).

Color values

HEX	#B31F5A
RGB	rgb(179, 31, 90)
HSL	hsl(336, 70%, 41%)
HSV	hsv(336, 83%, 70%)
CMYK	cmyk(0%, 82.7%, 49.7%, 29.8%)
CIE-LAB	lab(40.09, 60.16, 4.27)
CIE-LCH	lch(40.09, 60.31, 4.06°)
OKLab	oklab(50.77% 0.1845 0.0115)
OKLCH	oklch(50.77% 0.185 3.6)
XYZ	xyz(20.9277, 11.3048, 10.7509)
Luminance	0.1130 (WCAG relative)
Temperature	warm
Family	pink

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B31F5A #1FB378

analogous

#B31FA4 #B31F5A #B32E1F

triadic

#B31F5A #5AB31F #1F5AB3

tetradic

#B31F5A #A4B31F #1FB378 #2E1FB3

square

#B31F5A #A4B31F #1FB378 #2E1FB3

split-complementary

#B31F5A #1FB32E #1FA4B3

monochromatic

#4B0D26 #7F1640 #B31F5A #DC3377 #E5689A

Accessibility & contrast

On white

6.44

#B31F5A on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.26

#B31F5A on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B31F5A

6.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B31F5A	#FFFFFF	#000000	##FFFFFF
##B31F5A	1.00	6.44	3.26	6.44
#FFFFFF	6.44	1.00	21.00	1.00
#000000	3.26	21.00	1.00	21.00
##FFFFFF	6.44	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#474C5B

Deuteranopia (green-blind)

#6D6957

Tritanopia (blue-blind)

#C3003A

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #b31f5a;
/* rgb */ color: rgb(179, 31, 90);
/* oklch */ color: oklch(50.8% 0.185 3.6);

Tailwind

colors: {
  custom: {
    50: '#d06d88',
    500: '#b31f5a',
    950: '#000000',
  },
}

SCSS

$custom: #b31f5a;
$custom-light: #d06d88;
$custom-dark: #000000;

JSON

{
  "hex": "#b31f5a",
  "rgb": {
    "r": 179,
    "g": 31,
    "b": 90
  },
  "hsl": {
    "h": 336.081,
    "s": 70.476,
    "l": 41.176
  },
  "oklch": {
    "l": 0.50767,
    "c": 0.18486,
    "h": 3.6
  },
  "luminance": 0.11302
}

Semantic roles & 50–950 ramp

primary

#B31F5A

secondary

#64CAA1

accent

#EDA63B

background

#FDF7F8

surface

#FBEDEF

border

#D4C8CA

text

#15080B

muted

#837B7C

Preview Lab

Preview with #B31F5A

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →